Liquid crystal display and method for manufacturing the same

ABSTRACT

Provided is a liquid crystal display. An exemplary embodiment of the present disclosure provides a liquid crystal display including a first substrate, a thin film transistor located on the first substrate, a pixel electrode located on the thin film transistor, a first roof layer that faces the pixel electrode and is formed of a first color filter layer, a capping layer located on the first roof layer; and a second roof layer that is located on the capping layer and is formed of a second color filter layer, in which a plurality of first microcavities is formed between the pixel electrode and the first roof layer, and the plurality of first microcavities forms a first liquid crystal layer that includes a liquid crystal molecule, and a plurality of second microcavities is formed between the second roof layer and a second substrate that is located on the second roof layer.

CROSS-REFERENCE TO RELATED APPLICATION

This application claims priority to and the benefit of Korean PatentApplication No. 10-2015-0046780 filed in the Korean IntellectualProperty Office on Apr. 2, 2015, the entire contents of which areincorporated herein by reference.

BACKGROUND

(a) Field of the Disclosure

The present disclosure relates to a liquid crystal display and a methodfor manufacturing the same.

(b) Description of the Related Art

A liquid crystal display is a common type of flat panel displaycurrently in use and generally includes two sheets of display panelswith field generating electrodes, such as a pixel electrode and a commonelectrode, formed thereon, and a liquid crystal layer interposedtherebetween. The liquid crystal display generates electric fields inthe liquid crystal layer by applying a voltage to the field generatingelectrodes. The generated electric fields determine the direction ofliquid crystal molecules of the liquid crystal layer and thereby controlthe polarization of incident light so as to display images.

The two sheets of display panels forming the liquid crystal display maybe configured by a thin film transistor display panel and an opposingdisplay panel. In the thin film transistor display panel, a gate lineconfigured to transmit a gate signal and a data line configured totransmit a data signal may be formed to intersect each other, and a thinfilm transistor connected to the gate line and the data line and a pixelelectrode connected to the thin film transistor may be formed. In theopposing display panel, a light blocking member, a color filter, and acommon electrode are formed. In some cases, the light blocking member,the color filter, and the common electrode may be formed in the thinfilm transistor display panel.

However, when two substrates are used, and each of the constituentelements is formed on the two substrates, the display device is heavyand thick, and high costs and long processing times are consumed.

The above information disclosed in this Background section is only forenhancement of understanding of the background of the disclosure andtherefore may contain information that does not form the prior art thatis already known in this country to a person of ordinary skill in theart.

SUMMARY

The present disclosure provides a liquid crystal display that has areduced thickness and an improved resolution and a method formanufacturing the same.

An exemplary embodiment of the present disclosure provides a liquidcrystal display including: a first substrate, a thin film transistorlocated on the first substrate, a pixel electrode located on the thinfilm transistor, a first roof layer that faces the pixel electrode andis formed of a first color filter layer, a capping layer located on thefirst roof layer; and a second roof layer that is located on the cappinglayer and is formed of a second color filter layer, in which a pluralityof first microcavities is formed between the pixel electrode and thefirst roof layer, and the plurality of first microcavities forms a firstliquid crystal layer that includes a liquid crystal molecule, and aplurality of second microcavities is formed between the second rooflayer and a second substrate that is located on the second roof layer.

The first microcavities and the second microcavities may be disposed tobe off-centered from each other.

The first color filter layer may include a first pixel, a second pixel,and a third pixel that are adjacent to each other along a direction of agate line that is connected to the thin film transistor, and the secondcolor filter layer may include a fourth pixel, a fifth pixel, and asixth pixel.

The plurality of pixels may be any one of a cyan pixel, a yellow pixel,and a magenta pixel, and the first pixel and the sixth pixel, the secondpixel and the fourth pixel, and the third pixel and the fifth pixel mayhave the same color pixel.

The plurality of pixels may be arranged in a matrix, and the secondcolor filter layer may be disposed so as to be off-centered by aninterval of ½ pixel in a matrix direction of the first color filterlayer.

The plurality of pixels may be arranged in a matrix, and the secondcolor filter layer may be disposed to be off-centered by an interval of½ pixel in a row direction of the first color filter layer.

The first microcavities and the second microcavities may include aplurality of regions corresponding to a pixel area, and the liquidcrystal display may further include a light blocking member that islocated between the plurality of regions.

The plurality of second microcavities may further include a secondliquid crystal layer including a liquid crystal molecule.

The first color filter layer may include a first pixel, a second pixel,and a third pixel that are adjacent to each other along a direction of agate line that is connected to the thin film transistor, and the secondcolor filter layer may include a fourth pixel, a fifth pixel, and asixth pixel.

The plurality of pixels may be any one of a red pixel, a green pixel,and a blue pixel, and the first pixel and the fourth pixel, the secondpixel and the fifth pixel, and the third pixel and the sixth pixel mayhave the same color pixel.

The plurality of pixels may be arranged in a matrix, and the secondcolor filter layer may be disposed so as to be off-centered by aninterval of ½ pixel in a column direction of the first color filterlayer.

Another exemplary embodiment of the present disclosure provides amanufacturing method of a liquid crystal display, comprising:

manufacturing a first liquid crystal display by: forming a thin filmtransistor on a first substrate, forming a pixel electrode to beconnected to one terminal of the thin film transistor, forming asacrificial layer on the pixel electrode, forming a first roof layerthat is formed of a first color filter on the sacrificial layer, forminga first microcavity in which a liquid crystal injection hole is formed,by removing the sacrificial layer, forming a first liquid crystal layerby injecting a liquid crystal material into the microcavity, and forminga first capping layer on the first color filter; manufacturing a secondliquid crystal display by: forming a thin film transistor on a secondsubstrate, forming a pixel electrode to be connected to one terminal ofthe thin film transistor, forming a sacrificial layer on the pixelelectrode, forming a second roof layer that is formed of a second colorfilter on the sacrificial layer, forming a second microcavity in which aliquid crystal injection hole is formed, by removing the sacrificiallayer, forming a second liquid crystal layer by injecting a liquidcrystal material into the microcavity, and forming a second cappinglayer on the second color filter; and bonding the first capping layerand the second capping layer.

The first microcavities and the second microcavities may be disposed tobe off-centered from each other.

The first color filter layer may include a first pixel, a second pixel,and a third pixel that are adjacent to each other along a direction of agate line that is connected to the thin film transistor, and the secondcolor filter layer may include a fourth pixel, a fifth pixel, and asixth pixel.

The plurality of pixels may be any one of a cyan pixel, a yellow pixel,and a magenta pixel, and the first pixel and the sixth pixel, the secondpixel and the fourth pixel, and the third pixel and the fifth pixel mayhave the same color pixel.

The plurality of pixels may be arranged in a matrix, and the secondcolor filter layer may be disposed so as to be off-centered by aninterval of ½ pixel in a matrix direction of the first color filterlayer.

The first microcavities and the second microcavities may include aplurality of regions corresponding to a pixel area, and themanufacturing method may further include forming a light blocking memberthat is located between the plurality of regions.

As described, according to the exemplary embodiment of the presentdisclosure, two liquid crystal displays are formed without having aseparate upper panel and are bonded together to provide a liquid crystaldisplay that may implement high resolution by a plurality of colorfilter layers while having a reduced thickness and weight.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a top plan view illustrating a liquid crystal displayaccording to an exemplary embodiment of the present disclosure.

FIG. 2 is a cross-sectional view taken along the cut line II-II of FIG.1.

FIG. 3 is a cross-sectional view taken along the cut line III-III ofFIG. 1.

FIGS. 4, 5 and 6 are views of arrangement of a first color filter layerand a second color filter layer according to an exemplary embodiment ofthe present disclosure.

FIG. 7 is a cross-sectional view of a liquid crystal display accordingto another exemplary embodiment of the present disclosure.

FIGS. 8, 9, 10, 11 and 12 are cross-sectional views illustrating amethod for manufacturing a liquid crystal display according to anexemplary embodiment of the present disclosure.

DETAILED DESCRIPTION OF THE EMBODIMENTS

Exemplary embodiments of the present disclosure are described more fullyhereinafter with reference to the accompanying drawings. As thoseskilled in the art would realize, the described embodiments may bemodified in various different ways, all without departing from thespirit or scope of the present disclosure. Rather, the exemplaryembodiments introduced herein are provided to sufficiently transfer thespirit of the present disclosure to those skilled in the art.

In the drawings, the thickness of layers, films, panels, regions, etc.,are exaggerated for clarity. It will be understood that when a layer isreferred to as being “on” another layer or substrate, it may be directlyon the other layer or substrate, or intervening them may also bepresent. Like reference numerals designate like elements throughout thespecification.

FIG. 1 is a top plan view illustrating a liquid crystal displayaccording to a first exemplary embodiment of the present disclosure.FIG. 2 is a cross-sectional view taken along the cut line II-II ofFIG. 1. FIG. 3 is a cross-sectional view taken along the cut lineIII-III of FIG. 1.

First, a first substrate 110 that is a lower panel is described withreference to FIGS. 1 to 3. A plurality of gate lines 121 is formed onthe first substrate 110, which may be formed of a transparent glass orplastic.

The gate line 121 is configured to transmit a gate signal and extendsmainly in a horizontal direction. Each gate line 121 includes aplurality of gate electrodes 124 that protrudes from the gate line 121.

The gate line 121 and the gate electrode 124 may be formed of at leastone selected from a group consisting of an aluminum-based metal such asaluminum (Al) and an aluminum alloy, a silver-based metal such as silver(Ag) and a silver alloy, and a copper-based metal such as copper (Cu)and a copper alloy.

In the present exemplary embodiment, although it is described that thegate line 121 and the gate electrode 124 are formed to be a singlelayer, the gate line 121 and the gate electrode 124 are not limitedthereto and may be formed to have a dual-layer structure or atriple-layer structure.

When the gate line 121 and the gate electrode 124 have a dual-layerstructure, the gate line 121 and the gate electrode 124 may be formedwith a lower layer and an upper layer, and the lower layer may be formedof at least one selected from a group consisting of a molybdenum-basedmetal such as molybdenum (Mo) and a molybdenum alloy, chromium (Cr), achromium alloy, titanium (Ti), a titanium alloy, tantalum (Ta), atantalum alloy, manganese (Mn), and a manganese alloy. The upper layermay be formed of at least one selected from a group consisting of analuminum-based metal such as aluminum (Al) and an aluminum alloy, asilver-based metal such as silver (Ag) and a silver alloy, and acopper-based metal such as copper (Cu) and a copper alloy. When the gateline 121 and the gate electrode 124 have a triple-layer structure,layers having different physical properties are combined to form thegate line 121 and the gate electrode 124.

A gate insulating layer 140 is formed on the gate line 121.

A semiconductor layer 151 is formed on the gate insulating layer 140.The semiconductor layer 151 extends mainly in a vertical direction andincludes a plurality of projections 154 that extends toward the gateelectrode 124.

A data line 171 and a drain electrode 175 which are connected to sourceelectrodes 173 are formed on the semiconductor layer 151.

The data line 171 is configured to transmit a data signal and extendsmainly in a vertical direction to intersect the gate line 121. Each dataline 171 is connected to a plurality of source electrodes 173 thatextends toward the gate electrode 124 and has a U shape.

The drain electrode 175 is separated from the data line 171 and extendstoward an upper portion from a center of the U shape of the sourceelectrode 173. Such shapes of the source electrode 173 and the drainelectrode 175 are examples and may be modified in various ways.

Data wire layers 171, 173, and 175 including the data line 171, thesource electrode 173, and the drain electrode 175 may be formed of atleast one selected from a group consisting of an aluminum-based metalsuch as aluminum (Al) and an aluminum alloy, a silver-based metal suchas silver (Ag) and a silver alloy, and a copper-based metal such ascopper (Cu) and a copper alloy.

In the present exemplary embodiment, although it is described that thedata line 171, the source electrode 173, and the drain electrode 175 areformed to be a single layer, the data line 171, the source electrode173, and the drain electrode 175 are not limited thereto and may beformed to have a dual-layer structure or a triple-layer structure.

When the data line 171, the source electrode 173, and the drainelectrode 175 have a dual-layer structure, the data line 171, the sourceelectrode 173, and the drain electrode 175 may be formed with a lowerlayer and an upper layer. The lower layer may be formed of at least oneselected from a group consisting of a molybdenum-based metal such asmolybdenum (Mo) and a molybdenum alloy, chromium (Cr), a chromium alloy,titanium (Ti), a titanium alloy, tantalum (Ta), a tantalum alloy,manganese (Mn), and a manganese alloy, and the upper layer may be formedof at least one selected from a group consisting of an aluminum-basedmetal such as aluminum (Al) and an aluminum alloy, a silver-based metalsuch as silver (Ag) and a silver alloy, and a copper-based metal such ascopper (Cu) and a copper alloy. When the data line 171, the sourceelectrode 173, and the drain electrode 175 have a triple-layerstructure, layers having different physical properties may be combinedto form the data line 171, the source electrode 173, and the drainelectrode 175.

A part of the projection 154 of the semiconductor layer is exposedbetween the source electrode 173 and the drain electrode 175 withoutbeing blocked by the data line 171 and the drain electrode 175. Exceptfor the exposed portion of the projection 154 of the semiconductorlayer, the projection 154 has the substantially same plane pattern asthe data line 171, the source electrode 173, and the drain electrode175. In other words, side walls of the data line 171, the sourceelectrode 173, and the drain electrode 175 may be substantially alignedwith side walls of the semiconductor layer therebelow. Such a pattern isformed because the data wire layers 171, 173, and 175 including the dataline 171, the source electrode 173, and the drain electrode 175 use thesame mask as the semiconductor layer.

One gate electrode 124, one source electrode 173, and one drainelectrode 175 form one thin film transistor (TFT) together with theprojection 154 of the semiconductor layer 151, and a channel of the thinfilm transistor is formed in the projection 154 between the sourceelectrode 173 and the drain electrode 175.

A passivation layer 180 is located on the data line 171, the drainelectrode 175, and the exposed portion of the projection 154 of thesemiconductor layer. The passivation layer 180 is formed of an inorganicinsulator such as silicon nitride or silicon oxide, an organicinsulator, or an insulator having a low permittivity.

A plurality of pixel electrodes 191 is located on the passivation layer180. The pixel electrode 191 is physically and electrically connected tothe drain electrode 175 through a contact hole 185 that passes throughthe passivation layer 180 and is applied with a data voltage from thedrain electrode 175. The pixel electrode 191 may be formed of atransparent conductor such as ITO or IZO.

Although not illustrated, the pixel electrode 191 may be formed as aplurality of small electrodes or fine slit-shaped electrodes.

A lower alignment layer (not illustrated) may be formed on the pixelelectrode 191 and may be a vertical alignment layer. The lower alignmentlayer may include at least one of materials that are generally used as aliquid crystal alignment layer, such as polyamic acid, polysiloxane orpolyimide.

A first microcavity 305 a is located on the lower alignment layer. Aliquid crystal material including liquid crystal molecules 3 is injectedinto the first microcavity 305 a through a first liquid crystalinjection hole 307 a. The first microcavity 305 a may be formed along acolumn direction of the pixel electrode 191. In the present exemplaryembodiment, the liquid crystal material is injected into the firstmicrocavity 305 a using capillary force, and the first microcavity 305 ainto which the liquid crystal material is injected forms a first liquidcrystal layer.

A plurality of regions of the first microcavity 305 a may be locatedalong the vertical direction, and the first liquid crystal injectionhole 307 a may also be formed along a direction in which the data line171 extends.

An upper alignment layer (not illustrated) may be located on the firstmicrocavity 305 a, and a common electrode 270 and the lower insulatinglayer 350 may be located on the upper alignment layer. The commonelectrode 270 is applied with a common voltage and generates an electricfield together with the pixel electrode 191, which is applied with adata voltage to determine a direction of inclined liquid crystalmolecules 3 located in the first microcavity 305 a between the twoelectrodes. The common electrode 270 forms a capacitor together with thepixel electrode 191 so that an applied voltage is maintained for aperiod of time even after the thin film transistor is turned off. Thelower insulating layer 350 may be formed of silicon nitride (SiNx) orsilicon oxide (SiO₂).

In the present exemplary embodiment, although it is described that thecommon electrode 270 is formed on the first microcavity 305 a, accordingto another exemplary embodiment, the common electrode 270 is formedbelow the first microcavity 305 a to drive a liquid crystal inaccordance with a coplanar electrode (CE) mode.

As illustrated in FIG. 2, the first microcavity 305 a may also bedivided into a plurality of regions along the horizontal direction. Thefirst microcavity 305 a is enclosed by the common electrode 270 and thelower insulating layer 350, and a light blocking member 220 is locatedbetween a plurality of first microcavities 305 a that are adjacent toeach other along a direction in which the gate line extends. In thiscase, the light blocking member 220 may be formed to have a height thatis approximately a one third of a height of the first microcavity 305 a.

The light blocking member 220, which may be referred to as a blackmatrix, prevents light leakage. Here, the light blocking member 220includes a portion formed along a direction in which the data line 171extends and a portion formed along a direction in which the gate line121 extends, as illustrated in FIG. 3. Further, the light blockingmember 220 is located in a portion from which the pixel area issubstantially excluded.

A first color filter layer C, Y, M is located on the common electrode270 and the lower insulating layer 350. In the present exemplaryembodiment, the first color filter C, Y, M is a first roof layer andprotects the first microcavity 305 a from an external pressure. Thefirst color filter layer C, Y, M includes a first pixel 230C, a secondpixel 230Y, and a third pixel 230M along a direction of the gate line121 that is connected to the thin film transistor.

Specifically, the first pixel 230C, the second pixel 230Y, and the thirdpixel 230M illustrated in FIG. 2 transmit light having cyan, yellow, andmagenta colors, respectively.

An upper insulating layer 370 is located on the first color filter layerC, Y, M. The upper insulating layer 370 may cover over the first colorfilter layer C, Y, M and the light blocking member 220.

A first capping layer 390 a is located on the upper insulating layer370. The first capping layer 390 a covers the first liquid crystalinjection hole 307 a through which the microcavity 305 may be exposedand may be formed of a thermosetting resin, silicon oxycarbide (SiOC) orgraphene.

Hereinafter, the second substrate 210 is described.

A second capping layer 390 b is located on the first capping layer 390a. The second capping layer 390 b may be formed of the same or differentmaterial as the first capping layer 390 a.

The upper insulating layer 370 and a second color filter layer Y, M, Cis sequentially located on the second capping layer 390 b. In thepresent exemplary embodiment, the second color filter layer Y, M, C is asecond roof layer and protects the second microcavity 305 b from anexternal pressure.

The second color filter layer Y, M, C includes a fourth pixel 230Y, afifth pixel 230M, and a sixth pixel 230C along a direction of the gateline 121 that is connected to the thin film transistor.

Specifically, the fourth pixel 230Y, the fifth pixel 230M, and the sixthpixel 230C illustrated in FIG. 2 transmit light having yellow, cyan, andmagenta colors, respectively.

In the exemplary embodiment of the present disclosure, the second colorfilter layer is disposed to be off-centered by an interval of ½ pixelfrom the first color filter layer in a matrix direction. The liquidcrystal display that includes the plurality of color filter layers mayfinally display one of three primary colors such as green, blue, andred. In accordance with a color to be finally represented, the colorarrangement of the first pixel, the second pixel, the third pixel, thefourth pixel, the fifth pixel, and the sixth pixel may vary. An intervalat which the first color filter layer is off-centered from the secondcolor filter layer is not limited to the interval of ½ pixel describedabove but may be modified.

FIGS. 4 to 6 are views of arrangement of a first color filter layer anda second color filter layer according to an exemplary embodiment of thepresent disclosure.

First, referring to FIG. 4, a first liquid crystal display 10 having afirst color filter layer and a second liquid crystal display 20 having asecond color filter layer are disposed to be offset by the interval of ½pixel in a diagonal matrix direction (i.e., offset in both row andcolumn direction). That is, the liquid crystal display according to theexemplary embodiment of the present disclosure has a resolution that isup to four times higher than a resolution of a liquid crystal display ofthe related art that includes one color filter layer.

In FIGS. 5 and 6, the first liquid crystal display 10 having a firstcolor filter layer and the second liquid crystal display 20 having asecond color filter layer are disposed to be offset by the interval of ½pixel in a row and column matrix direction, respectively. Therefore, aliquid crystal display that has up to two times the better resolution inthe row or column matrix direction may be provided.

As illustrated in FIG. 6, when the resolution is increased in a columndirection, the first color filter layer and the second color filterlayer may be formed to be configured by one of three primary colors ofgreen, blue, and red.

A cross-sectional view of the liquid crystal display having anarrangement of the first color filter layer and the second color filterlayer as illustrated in FIG. 6 is illustrated in FIG. 7. The liquidcrystal display has the same configuration and the same effect as theliquid crystal display according to the above-described exemplaryembodiment except for a difference of the arrangement of the first colorfilter layer and the second color filter layer.

In a liquid crystal display according to another exemplary embodiment ofthe present disclosure, a field sequential color (FSC) driving methodmay be applied.

In this case, the first microcavity and the second microcavity aredisposed to be off-centered by an interval of ½ pixel in the matrixdirection without providing the first color filter layer and the secondcolor filter layer.

The field sequential color (hereinafter, abbreviated as FSC) drivingmethod is a driving method that displays color without using a colorfilter. Specifically, the FSC driving method displays mixed color usinga residual image effect that occurs in the eyes of a human being bysequentially driving LEDs of three primary colors (red, green and blue).More specifically, the time for displaying one frame by the displaypanel is divided into three times for displaying colors of red, green,and blue, and each back light is sequentially illuminated with aninterval of time. A field sequential color (FSC) driving method thatuses an LED as a back light unit generally achieves a better imagequality.

The common electrode 270, the lower insulating layer 350, and the secondmicrocavity 305 b are sequentially located on the second color filterlayer. The common electrode 270 is applied with a common voltage andgenerates an electric field together with the pixel electrode 191 thatis applied with a data voltage to determine a direction of inclinedliquid crystal molecules 3 located in the second microcavity 305 bbetween the two electrodes. The common electrode 270 forms a capacitortogether with the pixel electrode 191 so that an applied voltage ismaintained even after the thin film transistor is turned off.

A liquid crystal material including the liquid crystal molecules 3 isinjected into the second microcavity 305 b through a second liquidcrystal injection hole 307 b. The liquid crystal material is injectedinto the second microcavity 305 b along a column direction of the pixelelectrode 191, and the second microcavity 305 b into which the liquidcrystal material is injected forms a second liquid crystal layer.

A plurality of regions of the second microcavity 305 b may be locatedalong the vertical direction, and the second liquid crystal injectionhole 307 b may also be formed along a direction in which the data line171 extends. The data line 171 is configured to transmit a data signaland extends mainly in the vertical direction to intersect the gate line121. Each data line 171 is connected to a plurality of source electrodes173 that extends toward the gate electrode 124 and has a U shape.

A semiconductor layer 151 is formed on the data line 171 and the drainelectrode 175, which are connected to the source electrodes 173. Thesemiconductor layer 151 extends mainly in a vertical direction andincludes a plurality of projections 154 that extends toward the gateelectrode 124.

A gate insulating layer 140 is formed on the semiconductor layer 151.

A second substrate 210, which may be formed of a transparent glass orplastic, is formed on the gate insulating layer 140.

That is, in the liquid crystal display according to the exemplaryembodiment of the present disclosure, except for an arrangement of thefirst color filter layer and the second color filter layer, the sametechnical configuration may be symmetrically formed with respect to thecapping layers 390 a and 390 b.

FIGS. 8 to 12 are cross-sectional views illustrating a method formanufacturing a liquid crystal display according to an exemplaryembodiment of the present disclosure.

Referring to FIG. 8, after forming a thin film transistor (notillustrated) on a first substrate 110, a pixel electrode 191 connectedto one terminal of a thin film transistor is formed. A sacrificial layer300 is formed on the pixel electrode 191.

The sacrificial layer 300 is exposed/developed or patterned to partiallyexpose a passivation layer 180 along a direction in which a data line171 extends. In this case, the sacrificial layer 300 may be divided intoa plurality of regions along a direction in which a gate line 121extends.

Referring to FIG. 9, a common electrode 270 and a lower insulating layer350 are sequentially formed so as to cover the sacrificial layer 300 andthe exposed passivation layer 180. The common electrode 270 may beformed of a transparent conductor, such as ITO or IZO, and the lowerinsulating layer 350 may be formed of silicon nitride (SiNx) or siliconoxide (SiO₂).

Referring to FIG. 10, a light blocking member 220 is formed betweensacrificial layers 300 that are adjacent to each other along thedirection in which the gate line 121 extends. In this case, the lightblocking member 220 may be formed to have approximately a height that isone third of a height of the sacrificial layer 300.

Referring to FIG. 11, a first color filter layer C, Y, M is formed onthe common electrode 270. An upper insulating layer 370 is formed on thefirst color filter layer to cover the first color filter layer C, Y, Mand the light blocking member 220.

Referring to FIGS. 2, 3, and 12, the sacrificial layer 300 is removed byan oxygen (O₂) ashing process or a wet etching method through the firstliquid crystal injection hole 307 a to form a first microcavity 305 a.The sacrificial layer 300 is removed, so that the first microcavity 305a is an empty space. Thereafter, an alignment layer (not illustrated) isformed through the first liquid crystal injection hole 307 a. Afterinjecting an alignment material including a solid content and a solventthrough the first liquid crystal injection hole 307 a, a bake process isperformed.

Next, a liquid crystal material including liquid crystal molecules 3 isinjected into the microcavity 305 a through the first liquid crystalinjection hole 307 a using an inkjet method.

Next, as illustrated in FIGS. 2 and 3, a first capping layer 390 a isformed on the first color filter layer to cover between the firstmicrocavities 305 a, so that a first liquid crystal display 10 in whichthe liquid crystal injection hole 307 a of the first microcavity 305 ais covered, as illustrated in FIG. 12, may be formed.

Another second liquid crystal display 20 is formed in accordance withthe above-described manufacturing method. The second liquid crystaldisplay 20 has the same structure as the first liquid crystal display10, except that the second color filter layer is disposed to be offsetby an interval of ½ pixel from the first color filter layer of the firstliquid crystal display 10.

A second capping layer 390 b formed of the same material as the firstcapping layer 390 a of the first liquid crystal display 10 is formed inthe second liquid crystal display 20, and the first and second cappinglayers are bonded to form a liquid crystal display as illustrated inFIGS. 2 and 3.

That is, in the liquid crystal display according to the presentexemplary embodiment, two liquid crystal displays are each formedwithout a separate upper panel and then bonded together to provide aliquid crystal display that may implement high resolution by a pluralityof color filter layers while having a reduced thickness and a weight.

While the present system and method have been described in connectionwith exemplary embodiments, it is to be understood that the presentsystem and method are not limited to the disclosed embodiments. On thecontrary, the present system and method to cover various modificationsand equivalent arrangements included within the spirit and scope of theappended claims.

What is claimed is:
 1. A liquid crystal display, comprising: a firstsubstrate; a thin film transistor located on the first substrate; apixel electrode located on the thin film transistor; a first roof layerthat faces the pixel electrode and is formed of a first color filterlayer; a capping layer located on the first roof layer; and a secondroof layer that is located on the capping layer and is formed of asecond color filter layer, wherein a plurality of first microcavities isformed between the pixel electrode and the first roof layer, and theplurality of first microcavities forms a first liquid crystal layer thatincludes a liquid crystal molecule, and a plurality of secondmicrocavities is formed between the second roof layer and a secondsubstrate that is located on the second roof layer.
 2. The liquidcrystal display of claim 1, wherein: the first microcavities and thesecond microcavities are disposed to be off-centered from each other. 3.The liquid crystal display of claim 2, wherein: the first color filterlayer includes a first pixel, a second pixel, and a third pixel that areadjacent to each other along a direction of a gate line that isconnected to the thin film transistor, and the second color filter layerincludes a fourth pixel, a fifth pixel, and a sixth pixel.
 4. The liquidcrystal display of claim 3, wherein: the plurality of pixels is any oneof a cyan pixel, a yellow pixel, and a magenta pixel, and the firstpixel and the sixth pixel, the second pixel and the fourth pixel, andthe third pixel and the fifth pixel have the same color pixel.
 5. Theliquid crystal display of claim 4, wherein: the plurality of pixels isarranged in a matrix, and the second color filter layer is disposed soas to be off-centered by an interval of ½ pixel in a matrix direction ofthe first color filter layer.
 6. The liquid crystal display of claim 4,wherein: the plurality of pixels is arranged in a matrix, and the secondcolor filter layer is disposed to be off-centered by an interval of ½pixel in a row direction of the first color filter layer.
 7. The liquidcrystal display of claim 4, wherein: the first microcavities and thesecond microcavities include a plurality of regions corresponding to apixel area, and the liquid crystal display further includes a lightblocking member that is located between the plurality of regions.
 8. Theliquid crystal display of claim 7, wherein: the plurality of secondmicrocavities further includes a second liquid crystal layer including aliquid crystal molecule.
 9. The liquid crystal display of claim 1,wherein: the first color filter layer includes a first pixel, a secondpixel, and a third pixel that are adjacent to each other along adirection of a gate line that is connected to the thin film transistor,and the second color filter layer includes a fourth pixel, a fifthpixel, and a sixth pixel.
 10. The liquid crystal display of claim 9,wherein: the plurality of pixels is any one of a red pixel, a greenpixel, and a blue pixel, and the first pixel and the fourth pixel, thesecond pixel and the fifth pixel, and the third pixel and the sixthpixel have the same color pixel.
 11. The liquid crystal display of claim10, wherein: the plurality of pixels is arranged in a matrix, and thesecond color filter layer is disposed so as to be off-centered by aninterval of ½ pixel in a column direction of the first color filterlayer.
 12. A manufacturing method of a liquid crystal display,comprising: manufacturing a first liquid crystal display by: forming athin film transistor on a first substrate, forming a pixel electrode tobe connected to one terminal of the thin film transistor, forming asacrificial layer on the pixel electrode, forming a first roof layerthat is formed of a first color filter on the sacrificial layer, forminga first microcavity in which a liquid crystal injection hole is formed,by removing the sacrificial layer, forming a first liquid crystal layerby injecting a liquid crystal material into the microcavity, and forminga first capping layer on the first color filter; manufacturing a secondliquid crystal display by: forming a thin film transistor on a secondsubstrate, forming a pixel electrode to be connected to one terminal ofthe thin film transistor, forming a sacrificial layer on the pixelelectrode, forming a second roof layer that is formed of a second colorfilter on the sacrificial layer, forming a second microcavity in which aliquid crystal injection hole is formed, by removing the sacrificiallayer, forming a second liquid crystal layer by injecting a liquidcrystal material into the microcavity, and forming a second cappinglayer on the second color filter; and bonding the first capping layerand the second capping layer.
 13. The manufacturing method of claim 12,wherein: the first microcavities and the second microcavities aredisposed to be off-centered from each other.
 14. The manufacturingmethod of claim 13, wherein: the first color filter layer includes afirst pixel, a second pixel, and a third pixel that are adjacent to eachother along a direction of a gate line that is connected to the thinfilm transistor, and the second color filter layer includes a fourthpixel, a fifth pixel, and a sixth pixel.
 15. The manufacturing method ofclaim 14, wherein: the plurality of pixels is any one of a cyan pixel, ayellow pixel, and a magenta pixel, and the first pixel and the sixthpixel, the second pixel and the fourth pixel, and the third pixel andthe fifth pixel have the same color pixel.
 16. The manufacturing methodof claim 15, wherein: the plurality of pixels is arranged in a matrix,and the second color filter layer is disposed so as to be off-centeredby an interval of ½ pixel in a matrix direction of the first colorfilter layer.
 17. The manufacturing method of claim 16, wherein: thefirst microcavities and the second microcavities include a plurality ofregions corresponding to a pixel area, and the manufacturing methodfurther includes forming a light blocking member that is located betweenthe plurality of regions.